Question

Explain the concept proposed by Paul Ehlrich.

Answer 1

1. Paul Ehrlich proposed the “Rivet Popper Hypothesis” to emphasise the importance of biodiversity in maintaining the stability of ecosystems.
2. He likened ecosystems to an airplane and the species that make up the ecosystem to the rivets that keep the aircraft together.
3. This theory holds that, similar to how each rivet is crucial to the structure of an airplane, each species has a distinct role in preserving the stability and functionality of an ecosystem.
4. The ecosystem may become unstable and ultimately collapse if too many species (rivets) are destroyed, much like an airplane may fail if too many rivets are removed.
5. Therefore, the overall loss of species can cause major ecological changes, even though certain species may appear to be less important.
6. Ehrlich’s theory thus emphasizes how crucial each species is to the general well-being and functionality of an ecosystem, and how the extinction of a species can threaten the ecological balance and cause environmental deterioration.